300
FNCA52 TJSJ 240618
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
218 AM AST TUE FEB 24 2026
DISCUSSION
THE KBDI REMAINS ABOVE CRITICAL FIRE WEATHER THRESHOLDS IN CABO
ROJO AT 642, WHILE AT GUANICA IT CONTINUES TO GRADUALLY INCREASE,
AND IT WAS AT 473 YESTERDAY. TODAY, SHOWER AND THUNDERSTORM
ACTIVITY IS EXPECTED TO INCREASE OVER PORTIONS OF THE CORDILLERA
AND WESTERN PR, THIS SHOULD KEEP RH VALUES AT 55% OR HIGHER IN
GENERAL ACROSS THE SOUTHERN COAST OF PR. WIND SPEEDS ARE EXPECTED
TO PEAK AROUND 15 MPH OR LESS, AND BECOME LIGHTER THROUGHOUT THE
DAY. THEREFORE, THE FIRE DANGER IS LOW.
PRZ014-250630-
SOUTHEAST COASTAL PLAINS-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 20
TEMP (24H TREND) 86 (-2) 68 (-4) 87
RH % (24H TREND) 60 (+6) 91 (+9) 44
WIND 20FT/EARLY(MPH) SE 13 G19 E 10 E 19 G24
WIND 20FT/LATE(MPH) SE 13 G19 E 10 E 19 G24
MIXING HGT(FT-AGL/MSL)4830 5830
TRANSPORT WND (MPH) E 7 E 21
VENT RATE (KT-FT) 28980 104940
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-250630-
SOUTHERN HILLS-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 40
TEMP (24H TREND) 82 (+1) 65 (-5) 83
RH % (24H TREND) 63 (+1) 97 (+15) 61
WIND 20FT/EARLY(MPH) SE 10 NE 9 E 16
WIND 20FT/LATE(MPH) SE 10 NE 9 E 16
MIXING HGT(FT-AGL/MSL)5930 6390
TRANSPORT WND (MPH) E 7 E 20
VENT RATE (KT-FT) 35580 108630
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-250630-
NORTH COASTAL PLAINS-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 50
TEMP (24H TREND) 84 (-3) 68 (-3) 85
RH % (24H TREND) 62 (+5) 100 (+15) 62
WIND 20FT/EARLY(MPH) E 11 E 10 E 20 G23
WIND 20FT/LATE(MPH) E 11 E 10 E 20 G23
MIXING HGT(FT-AGL/MSL)4510 5400
TRANSPORT WND (MPH) E 7 E 21
VENT RATE (KT-FT) 27060 97200
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-250630-
NORTHERN HILLS-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 30 60
TEMP (24H TREND) 84 (-1) 65 (-4) 84
RH % (24H TREND) 57 (+1) 100 (+15) 63
WIND 20FT/EARLY(MPH) NE 11 E 9 E 18
WIND 20FT/LATE(MPH) NE 11 E 9 E 18
MIXING HGT(FT-AGL/MSL)5970 6160
TRANSPORT WND (MPH) E 5 E 18
VENT RATE (KT-FT) 23880 98560
DISPERSION 4 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-250630-
WEST COAST-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 50 70
TEMP (24H TREND) 86 (-2) 67 (-4) 87
RH % (24H TREND) 58 (+3) 97 (+14) 57
WIND 20FT/EARLY(MPH) NE 11 NE 12 E 18
WIND 20FT/LATE(MPH) NE 11 NE 12 E 18
MIXING HGT(FT-AGL/MSL)5300 5990
TRANSPORT WND (MPH) E 5 E 16
VENT RATE (KT-FT) 21200 83860
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-250630-
EASTERN INTERIOR-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 83 (0) 66 (-4) 83
RH % (24H TREND) 66 (+5) 99 (+13) 65
WIND 20FT/EARLY(MPH) E 10 E 10 E 14
WIND 20FT/LATE(MPH) E 10 E 10 E 14
MIXING HGT(FT-AGL/MSL)5500 6080
TRANSPORT WND (MPH) E 7 E 20
VENT RATE (KT-FT) 33000 103360
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-250630-
LUQUILLO MOUNTAIN RANGE-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 60
TEMP (24H TREND) 79 (+1) 65 (-3) 79
RH % (24H TREND) 71 (+3) 99 (+7) 69
WIND 20FT/EARLY(MPH) SE 9 E 8 E 13
WIND 20FT/LATE(MPH) SE 9 E 8 E 13
MIXING HGT(FT-AGL/MSL)4350 5280
TRANSPORT WND (MPH) SE 10 E 21
VENT RATE (KT-FT) 39150 95040
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-250630-
CENTRAL MOUNTAIN RANGE-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 20 60
TEMP (24H TREND) 81 (+1) 62 (-5) 83
RH % (24H TREND) 57 (-4) 100 (+15) 62
WIND 20FT/EARLY(MPH) E 10 E 9 E 12
WIND 20FT/LATE(MPH) E 10 E 9 E 12
MIXING HGT(FT-AGL/MSL)7240 7130
TRANSPORT WND (MPH) SE 3 E 15
VENT RATE (KT-FT) 21720 92690
DISPERSION 4 5
DSI 5 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-250630-
CAYEY MOUNTAIN RANGE-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 40
TEMP (24H TREND) 78 (0) 65 (-4) 78
RH % (24H TREND) 72 (+6) 100 (+13) 71
WIND 20FT/EARLY(MPH) SE 10 E 6 E 13
WIND 20FT/LATE(MPH) SE 10 E 6 E 13
MIXING HGT(FT-AGL/MSL)5080 5630
TRANSPORT WND (MPH) E 8 E 21
VENT RATE (KT-FT) 35560 101340
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-250630-
VIEQUES-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 60
TEMP (24H TREND) 85 (-1) 71 (-1) 85
RH % (24H TREND) 59 (+2) 92 (+3) 60
WIND 20FT/EARLY(MPH) SE 12 E 12 E 18 G22
WIND 20FT/LATE(MPH) SE 12 E 12 E 18 G22
MIXING HGT(FT-AGL/MSL)2740 4100
TRANSPORT WND (MPH) E 10 E 22
VENT RATE (KT-FT) 24660 77900
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-250630-
CULEBRA-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLEAR MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 60
TEMP (24H TREND) 85 (0) 73 (0) 85
RH % (24H TREND) 59 (-2) 92 (+3) 61
WIND 20FT/EARLY(MPH) SE 12 E 12 E 17 G21
WIND 20FT/LATE(MPH) SE 12 E 12 E 17 G21
MIXING HGT(FT-AGL/MSL)3000 4060
TRANSPORT WND (MPH) SE 15 E 22
VENT RATE (KT-FT) 39000 77140
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-250630-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS
CHANCE PRECIP (%) 40 30 50
TEMP (24H TREND) 87 (-2) 67 (-5) 88
RH % (24H TREND) 54 (+3) 91 (+11) 45
WIND 20FT/EARLY(MPH) E 11 NE 14 E 24 G31
WIND 20FT/LATE(MPH) E 11 NE 14 E 24 G31
MIXING HGT(FT-AGL/MSL)5210 5850
TRANSPORT WND (MPH) SE 7 E 20
VENT RATE (KT-FT) 31260 99450
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-250630-
SAINT THOMAS AND SAINT JOHN-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 60
TEMP (24H TREND) 85 (+2) 72 (-1) 85
RH % (24H TREND) 57 (-6) 91 (0) 60
WIND 20FT/EARLY(MPH) SE 14 G18 E 13 G17 E 18 G22
WIND 20FT/LATE(MPH) SE 14 G18 E 13 G17 E 18 G22
MIXING HGT(FT-AGL/MSL)3470 3970
TRANSPORT WND (MPH) SE 15 E 22
VENT RATE (KT-FT) 45110 75430
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-250630-
ST CROIX-
218 AM AST TUE FEB 24 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 40
TEMP (24H TREND) 86 (+1) 72 (-2) 86
RH % (24H TREND) 58 (-1) 92 (+3) 59
WIND 20FT/EARLY(MPH) SE 14 G18 E 13 E 17 G22
WIND 20FT/LATE(MPH) SE 14 G18 E 13 E 17 G22
MIXING HGT(FT-AGL/MSL)4180 4950
TRANSPORT WND (MPH) SE 17 E 24
VENT RATE (KT-FT) 62700 103950
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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